Sash-lock.



Patented June 5, I900. H. H. K-ENDR'ICK. SAS-H LOG'K.

(Application (No Model.)

filed m a, 1899.)

2 Sheets-Sheet I. I

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m WITNESSES: 1" 3 ATTORNEY No. 650,844. Patented June 5, I900. H. H. KENDRICK.

SASH LUCK? (Application filed m a, 1599.

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HILAND n. KENDRIOK, or FULTON, NEW YORK.

SASH-LOCK.

SPECIFICATION forming part of LettersPatent No. 650,844, dated June 5, 19oo. Application filed May 8, 1 99. Serial to. 715,950. (No modelJ Be it known that I, HILAND H. KENDRICK,

of Fulton, in the county of Oswego, in the State of New York, have invented new andv useful Improvements in Sash Locks and Catches, of which the following, taken in con-. nection with the accompanying drawings, is a full, clear, and exact description.

The object of this invention is to provide a simple,convenient, and efficient sash lock and catch which shall be capable of locking the sash in any desired open position as well as in its closed position and shall effectually prevent the sash from rattling and shall also have the lock or catch proper or the main portion of the device shielded and concealed, so as to protect it from dust and from water during the operation of washing the window and also avoid defacing the sash and windowcasing; and to that end the invention consists in certain peculiarities in the construction of parts and in certain novel combina tions and arrangements of elements, substantially as hereinafter described, and particularly set forth in the claims.

In the annexed drawings, Figure l is a face view of that portion of a window to which my invention is applied. Fig. 2 is a horizontal transverse 'section on line X X in Fig. 1. Fig. 3 is a vertical transverse section taken in a plane passing through the sash lock and catch. Fig. 4. is a horizontal transverse sec-. tion of a modification of my invention, and Fig. 5 is a detached'plan' view of the plate used in said modification for guiding and sustaining the outer end of the push-bar.

Similar letters of reference indicate corresponding parts.

A and A represent one of the sides and faces, respectively, of the window-casing.

C and 0 denote the upper and lower sashes, respectively.

D represents one of the vertical outer guidestrips or shoulders projecting from the window-casing.

I. is the usual parting-strip, which projects from the window-casing to separate the two sashes, and L denotes the so-called stop, which is secured to the casing to confine the lower sash in the window.

a represents the rectilineally-movable pushb'ar, which is disposed at right angles to the plane of the sash and by means of which said sash is forced outward against the aforesaid shoulder projecting from the casing and is thereby locked on said shoulder.

I 'preferably interpose between the sash and push-barabite b, which is pressed against the front of the corner portion of the sash by said push-bar in looking the sash. A vertical metal strip 0, attached to said portion of the sash, serves to protect the same from wear and abrasion by contact with said bite. The aforesaid push-bar and bite are both shielded and concealed by the stop L, which is placed over them. The bite I) is formed on a block Z), which slides ina shoe d, which is countersunk in the side casing A and securely confined therein. It will be observed that the bite b projects laterally from a place between the ends of the block b and forms, with the free end of said block, an approximately L-shaped portion which receives and engages the corner of the sash. It will also be observed that one corner of said block is cut away to form a space bounded on two sides by walls of the shoe (1 and on the other two sides by the walls of said cut-away portion for the admission of the spring e, which latter thereby bears against the block at a place out of line with the bar in opposition to which it acts and about on a line with the center of the block. The portion of the block which is engaged with the wall of the shoe projects forward, as shown, to form an extended bearing against said shoe, thus com pensating for the loss in the amount of the bearing-surface occasioned by removing the corner of the block. This specific construction is advantageous in that it overcomes any tendency to looseness or wabbling of the parts when in action and at the same time enables the parts to be of small size'and compact form. Said shoe is formed with guides d d, which are parallel with the push-bar and sustain between them the bite-block I).

e represents a spring seated in the endof the shoe adjacent to the sash and pressing the bite-block b in opposition to the pushbar a, and thus automatically relieving the sash from the outward pressure of the bite b when the latter is relieved from the of the push-bar.

press u re in its position.

said push-bar has attached to it a suitable knob 0, by which to turn said bar. The engagement of the stationary nut n with the revolving push-bar acauses the latter to move longitudinally, and in turning it in one direction it forces the bite Z) toward the sash and presses the sash outward against the vertical guide or shoulder projecting from the window-casing, and thereby clamps the sash In turning the push-bar in the opposite direction itis caused to recede from the bite I), which is then pushed from its ongagement with the sash by force of the spring (2. I do not, however, limit myself to the use of said screw-threaded push-bar and nut, inasmuch as the same effect may be obtained by means of a plain rectilineally-slidin g bar forced toward the bite I) by means of a camdisk f, bearing on the protruding end of the push-bar and fastened to a thumb-piece g, which is pivoted on a stud-pin i, screwed or otherwise firmly secured in a socket Z, fastened in a window-casing A, as shown in Fig. 4 of the drawings. Said socket is formed on an annular plate h, resting on the face of the easing and provided with a plurality of apertures t t, as shown in Fig. 5 of the drawings. The end of the push-bar passes through one of said apertures and is thus guided longitudinally and prevented from yielding laterally to the pressure of the cam-disk f. 13y turning the thumb-piece g the cam-disk is caused to traverse the end of the push-bar and push the same endwise in opposition to the spring c.

In the operation of either of the described means for actuating the push-bar the latter is caused to press the bite I) firmly against the sash, and thereby clamp the same on the parting-strip I or on the guide-stri p D, according to which of the two sashes the sash-lock is arranged to engage.

It will be observed that by the described outward pressure of the sash against the shoulder projecting from the window-casing I effectually prevent the sash from rattling when said sash is locked by my improved lock and catch. It will also be observed that there are two distinct and separate lockin g meansone for each sasheach including a block to engage its sash and a push-bar for the block. By thus providing each block with a separate push-bar (instead of operating them in unison by means of a device common to both and which when operated forces one in one direction and the other in the other direction, as heretofore) the sashes may be independently locked and unlocked and one sash may be forced against one window-strip while the other sash is forced against another windowstrip. The bite of one block is received by a recess L, formed in the strip or stop L, while the bite of the other block is received in a recess 1, formed in the parting-strip 1. Furthermore, by placing the push-bar and bite in the window-casing back of the stop L, I effectually shield and protect the principal parts of the sash-lock from dust and water in the washing of the window and also avoid marring the window by the presence of the sash-lock.

lVhat I claim as my invention is 1. The combination with a window-casing, having an outer guide-strip, a recessed parting-strip and a recessed stop; and the upper and lower sashes; of a block, having a bite projecting laterally therefrom into the recess in the parting-strip and engaging the lower sash; a bar operated to force said block inward and lock the sash against the outer guide-strip; a separate block, having a bite projecting laterally therefrom into the recess in the stop and engaging the upper sash, and a bar operated to force said block inward and lock said uppersash against the parting-strip, substantially as described.

2. The combination with the window-casing and the upper and lower sashes, of means for locking said sashes independently, said means embodying a pair of shoes countersunk in the casin g and attached thereto, each of said shoes having a nut at one end disposed axially at right angles to the plane of the sash, guides formed in each shoe parallel with the eye of the nut thereof, a pair of disconnected bites, one for each sash, sliding in said guides, and a pair of disconnected and independently-operated screw-rods extending through the eyes of said nuts and engaging said bites, substantially as described.

3. The combination, with the sash and window-casing, of a shoe countersunk in said easin g and secured thereto, a nut formed on one end of said shoe and disposed axially at right angles to the plane of the sash, a screw working in said nut, a bite sliding in said shoe and actuated by the screw to force the sash outward and a spring seated in the shoe and forcing the bite in opposition to the screw as set forth.

4. The combination with the window-casing and the upper and lower sashes, of means for locking said sashes independently, said means embodying a pair of shoes countersunk in the window-easing, each of said shoes having an eye at one end and formed with guides, a pair of disconnected and independ ently-oporated bites, one for each sash, sliding in said shoes and operated independently to lock the sashes, a pair of disconnected and independcntly-operated rods extending through the eyes of the respective shoes and engaging the bites therein, and a spring for each bite, operating in opposition to the rod of its bite and arranged between its bite and a wall of the shoe, substantially as described.

5. The combination with a window-casing having an outer guide-strip, a recessed parting-strip and a recessed stop; and the upper and lower sashes; of a separate shoe for each window countersunk in the casing; a separate block in each shoe, each having a laterally-projecting bite, one of which is received in the recess in the stop and the other in the recess in the parting-strip; a separate spring for each block; and a separate push-bar for each block, operated to force the same in opposition to the spring thereof; one of said blocks serving to lock one sash against the parting-strip and the other block serving to lock its sash against the outer guide-strip, and said blocks, shoes, push-bars and springs being concealed and protected by the parting strip and stop, substantially as described.

6. The combination with the Window-casing, having recessed strips, and the upper and lower sashes, of shoes countersunk in said casing and having eyes at their ends,

HILAND H. KENDRICK.

Vitnesses:

O. R. DINES, L. O. FosTER. 

